This author has yet to write their bio.Meanwhile lets just say that we are proud Ken Perry contributed a whooping 29 entries.
Learn more about recent advances and software tools to leverage medical imaging data in the product lifecycle. Are you new to working with medical imaging data as an engineer? First you should find out if you will have access to DICOM or an other 3D or 4D medical imaging data format. If so, the complete […]
This is a simple model of the the gStent in NX. The gStent is an open source stent design developed to advance regulatory science and the use of computer models and simulations in making safe and effective medical products. Building the model in NX was easy. After importing the sketch geometry, it took only a […]
I took my first test drive today with some of the advanced NX features for re-surfacing STL files. STL files are common in the engineers workflow, especially associated with measurement data from scanning or medical imaging sources. NX imports STL files directly and a number of typical features can be used to stitch, re-partition, seed […]
The gStent-BE is shown here, bending over backwards to make a point in a proposed ASTM standard that was discussed today at FDA headquarters. The draft guidance standard, passionately referred to as “Fatigue to Fracture”, is supported by engineers and regulators and has deep roots in the dialog between agency and industry. The standard addresses […]
The International Conference on Computational and Experimental Engineering and Sciences (ICCES) is an organization of highly reputed international researchers, from academia, industry, and governments across the world, in the general disciplines of computational and experimental engineering and sciences. We were invited to speak at the 2015 ICCES Conference in a special Symposium on Shape, Deformation […]
The gStent-BE standardized test stent has been used in surface characterization studies and to study drug coating and elution. Martin McDermott and colleauges at the FDA recently published a paper investigating the drug coating process for coated drug-eluting stents (DES). It was titled, “Application of Quality by Design (QbD) Approach to Ultrasonic Atomization Spray Coating of […]
Today is the 20 year anniversary of Renegade Solutions. This business grew out of PhD work and collaboration with a remarkable colleague Brent Buescher while we were at the Idaho National Engineering Laboratory INEL, or INL as it goes by now. Renegade Solutions began as a scientific instrumentation company. We sold sophisticated measurement and analysis […]
Defining the in vivo loading conditions for a new device presents great challenges for design validation. Complex implant geometries, multi-axial displacements, device/tissue interactions and time dependent factors can make it difficult or impossible to identify a single loading cycle that is representative of the full range of conditions. In a paper published in ASTM-STP1559, Fatigue […]
With the growing use of Nitinol in medical implants, there is a need for improved characterization of the material behavior of Nitinol and methodologies for better product design and engineering. While it is a good starting point, the typical approach of employing the force-deformation response from uniaxial tension tests for input and validation of material […]
Cardiovascular Implant DurabilityOctober 6, 2019 - 3:05 pm
Improving Medicine with Philosophy of ScienceNovember 9, 2018 - 3:19 pm
Digital Image Correlation for Medical ImplantsOctober 4, 2018 - 12:33 pm
Faster Learning Beats Better PlanningSeptember 5, 2018 - 5:23 pm
Theory of Critical Distances and Design ValidationJuly 5, 2018 - 5:23 pm